Detailed description
2.12 Block descriptions
Power Line Basic PLC Program (P3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-169
2.12.11 FC 2: GP_HP Basic program, cyclical section
Description of functions
The complete processing of the NCKPLC interface is carried out in cyclic mode. In order to
minimize the execution time of the basic program, only the control/status signals are
transmitted cyclically; transfer of the auxiliary functions and G functions only takes place
when requested by the NCK.
Declaration
FUNCTION FC 2: VOID
//No parameters
Call example
As far as the time is concerned, the basic program must be executed before the user
program. It is therefore called first in OB 1.
The following example contains the standard declarations for OB 1 and the calls for the basic
program (FC2), the transfer of the machine control panel signals (FC19) and the acquisition
of error and operating messages (FC10).
ORGANIZATION_BLOCK OB 1
VAR_TEMP
OB1_EV_CLASS : BYTE ;
OB1_SCAN_1 : BYTE ;
OB1_PRIORITY : BYTE ;
OB1_OB_NUMBR : BYTE ;
OB1_RESERVED_1 : BYTE ;
OB1_RESERVED_2 : BYTE ;
OB1_PREV_CYCLE : INT ;
OB1_MIN_CYCLE : INT ;
OB1_MAX_CYCLE : INT ;
OB1_DATE_TIME : DATE_AND_TIME;
END_VAR
BEGIN
CALL FC 2; //Call basic program as first FC
//INSERT USER PROGRAM HERE
CALL FC 19 ( //MCP signals to interface
BAGNo := B#16#1, //Mode group no. 1
ChanNo := B#16#1, //Channel no. 1
SpindleIFNo := B#16#4, //Spindle interface number
= 4
FeedHold := m22.0, //Feed stop signal
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